AoA Audio Extractor Platinum - Audio Extractor, Audio Converter, Sound Recording, Voice Changer, Karaoke Recording, All in one. Extract audio/sound or background music from video files; Convert audio files between different audio formats; Record your voice or any sound from microphone, CD/DVD player and any other input line available with your sound card. You can select a popular song (WAV,MP3) and sing along with the song.